Diagnostics Using the Status LEDs on the TSX CPP 110 PCMCIA Card
(Original Document)
At a Glance
LEDs on the card allow you to see the status of the card and of the CANopen bus. In normal operation, the ERR LED is off and the COM LED is on permanently.
Illustration
The following figure indicates the positioning of the two LEDs, ERR and COM.
Diagnostics
Depending on the status of the LEDs, the diagnostics are as follows:
Status display LEDs
Meaning
ERR (red)
COM (yellow)
Off
Off
Card has no power supply or configuration transfer in progress
Blinking
(Irregular)
No configuration on the card
Blinking
(Regular)
Card configured and ready, bus not active or no CANopen firmware
On
Bus configured and active, no error
Perma-nently on
Off
Error detected, bus controller stopped
Blinking
Card configured and ready, but unable to communicate with a remote peripheral device (e.g. CAN bus cable disconnected), or all the configured peripheral devices report an error.
Error on card, configuration error, or error on synchronization between the card and the PLC (for more information, consult the module status diagnostics data)
On
Bus configured and active, at least one bus subscriber cannot be reached or signals an error